---
product_id: 365391708
title: "NSF/ANSI 42&372 Standard Gravity Water Filter, Replacement for Berkey® BB9-2® Black Filters & PF-2® Fluoride Filters, Berkey® Gravity Water Filter System and Waterdrop King Tank Series"
brand: "waterdrop"
price: "¥70059"
currency: JPY
in_stock: true
url: https://www.desertcart.jp/products/365391708-nsf-ansi-42-and-372-standard-gravity-water-filter-replacement
store_origin: JP
region: Japan
---

# NSF/ANSI 42&372 certified purity 6,000 gallons lifespan per filter pair Dual black carbon + fluoride filtration NSF/ANSI 42&372 Standard Gravity Water Filter, Replacement for Berkey® BB9-2® Black Filters & PF-2® Fluoride Filters, Berkey® Gravity Water Filter System and Waterdrop King Tank Series

**Brand:** waterdrop
**Price:** ¥70059
**Availability:** ✅ In Stock

## Summary

> 💧 Elevate your hydration game with pure, crisp water—because your health deserves the best.

## Quick Answers

- **What is this?** NSF/ANSI 42&372 Standard Gravity Water Filter, Replacement for Berkey® BB9-2® Black Filters & PF-2® Fluoride Filters, Berkey® Gravity Water Filter System and Waterdrop King Tank Series by waterdrop
- **How much does it cost?** ¥70059 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/365391708-nsf-ansi-42-and-372-standard-gravity-water-filter-replacement)

## Best For

- waterdrop enthusiasts

## Why This Product

- Trusted waterdrop brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Seamless Compatibility:** Fits Berkey BB9-2 & PF-2 filters and Waterdrop King Tank Series—upgrade your gravity system without hassle.
- • **Dual-Action Filtration Power:** Combines black carbon and fluoride filters to eliminate chlorine, bad taste, sediment, and harmful fluoride for crisp, fresh water.
- • **Safe & Sustainable Materials:** Crafted with BPA-free, lead-free, food-grade plastics for worry-free hydration and eco-conscious use.
- • **Long-Lasting & Cost-Effective:** Replace black carbon filters every 6,000 gallons and fluoride filters every 1,000 gallons to maintain peak performance.
- • **Certified Clean Water, Every Drop:** NSF/ANSI 42&372 standards ensure trusted filtration performance for your health-conscious lifestyle.

## Overview

The Waterdrop NSF/ANSI 42&372 Standard Gravity Water Filter is a premium replacement filter set compatible with Berkey BB9-2 black and PF-2 fluoride filters, as well as Waterdrop King Tank Series. It features dual filtration technology combining black carbon and fluoride filters to reduce chlorine, sediment, bad taste, and fluoride, certified to NSF/ANSI 42&372 standards. Designed for durability, each black carbon filter pair lasts up to 6,000 gallons, while fluoride filters last 1,000 gallons. Made from BPA-free, lead-free food-grade materials, this filter ensures safe, fresh-tasting water for gravity-fed filtration systems.

## Description

Waterdrop NSF/ANSI 42&372 Standard Gravity Water Filter, Replacement for Berkey BB9-2 Black Filters & PF-2 Fluoride Filters, Berkey Gravity Water Filter System and Waterdrop King Tank Series

## Features

- Compatible with: Replacement for Berkey BB9-2 black Filters & PF-2 Fluoride Filters Combo Pack, Travel, Big, Royal, Imperial and Crown Berkey Gravity filter system. And it is compatible with Waterdrop Gravity-fed Water Filter System. The water filter is not sourced by or sponsored by Berkey. Waterdrop is an independent brand.
- This filter set combines black carbon filters and fluoride filters to absolutely reduce harmful substances from the outdoor water source. With this product, you can breathe the fresh air and immerse yourself with fresh water. Please note that TDS level does not fully indicate the quality of the water and our filters DOES NOT lower TDS value.
- The premium carbon block can absorb many impurities like sands, rust, sediment, bad taste, and odor. This product is characterized by uniform particles and a smooth surface to properly reduce chlorine, which is the primary cause of bad taste. Afterward, much cleaner water passes through the granular activated carbon to achieve superior performance on taste improvement.
- Durable life span without compromising performance. To attain the best product performance, we recommend you replace the black carbon filter every 6,000 gallons per pair and replace every 1,000 gallons per pair, which will be different based on water conditions. Please flush black carbon filter for 1 minute and fluoride filter for 20 seconds before use by connecting to faucet. Note: if faucet not fully compatible, splashing may occur but won't affect product.
- Food-grade materials. Not only do we firmly control the filter material but also adopt lead-free and BPA-free materials to produce the filter housing. Waterdrop aims to provide you with a broad protection service. We have outstanding customer support service to enhance the use of our products. Our agents are available at all times to expertly attend to your questions.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Material | Plastic |
| Item Weight | 3.14 Pounds |
| External Testing Certification | NSF/ANSI 42&372 Standard |
| Product Benefits | Removes impurities and improves water taste |
| Brand | Waterdrop |
| UPC | 840814168714 840814170878 840814194096 |
| Net Quantity | 1.0 Count |
| Manufacturer | WATERDROP |
| Country of Origin | USA |
| Item model number | WD-W7990 |
| ASIN | B07YV1GXSH |

## Product Details

- **Material:** Plastic
- **Item Weight:** 3.14 Pounds
- **External Testing Certification:** NSF/ANSI 42&372 Standard
- **Product Benefits:** Removes impurities and improves water taste
- **Brand:** Waterdrop

## Images

![NSF/ANSI 42&372 Standard Gravity Water Filter, Replacement for Berkey® BB9-2® Black Filters & PF-2® Fluoride Filters, Berkey® Gravity Water Filter System and Waterdrop King Tank Series - Image 1](https://m.media-amazon.com/images/I/513moEhfyTL.jpg)

## Questions & Answers

**Q: Where is the independent testing/third party on these filters? This company has a history of being deceptive about their filters.**
A: It’s March of 2022 I just spoke to “Mia” who is still fielding calls and then sending generic responses (it removes taste and odor!) via email with her name in them. 
Waterdrop filter reps have yet to substantively reply to my finite request for specifics of any/all products removed from water through (their carbon + flouride filters) and at what rate (%) of reduction. 
So too no responses were received asking for their NSF ANSI attainment levels. 
Based on a lack of any results in receiving their transparency thus far ...imho the lack of forthrightness negates my justifying a purchase of their gravity water system and/filters for purposes of water purification.

**Q: So where is the lab test rating?  Where can I find the lab test rating?**
A: I contacted the company to ask if they could send me a copy of the filtration quality metrics and third-party verification. This was their reply: 

“Dear [removed], 
Thanks for your reply. 
Sorry to tell you that we don't have the datasheet you need, please rest assured that our company offers quality products at a lower price without compromising quality. The filter materials in these are in good quality. 

Best Regards, 
Mia Lauren, 
Customer Service Rep”

**Q: I have a propur Big, it has 7" white ceramic filters.  How would I install the flouride filter that comes with these black filters?**
A: Install the black filter on the top of gravity water filter firstly, then install the flouride filter.

**Q: Would running one fluoride and one regular black charcoal filter be sufficient in my 2.25 Waterdrop System?**
A: Hi,
Thanks for your interest in our filter product.
Please note that we recommend using 2 fluoride filter and 2 black filter in the system to ensure performance, thank you.
If you have contacted us via email but received no reply, please check the Spam/Junk Folder first. Thank you.

If you have any other inquiries, please feel free to contact us.
1-888-352-3558 (8:00 AM - 5:00 PM PST, Mon - Fri).

Kind Regards
Mia Lauren　
Customer Service Rep

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-03-21*